227958-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 227958-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,7,9,5 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 227958-74:
(8*2)+(7*2)+(6*7)+(5*9)+(4*5)+(3*8)+(2*7)+(1*4)=179
179 % 10 = 9
So 227958-74-9 is a valid CAS Registry Number.